Stamp-mill machinery.



v No. 852,755

PATENTED MAY '7. 1907 LUL ANDERSON. STAMP MILL MACHINERY.`

APPLIOATON FILED MAY 23. 1904.

@Hounuj PATENTED MAY 7, 1907.

J. C. ANDERSON. STAMP. MILL MACHINERY'.

APPLICATION FILED MAY 23. 1904.

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J. G. ANDERSON..

STAMP MILL MACHINERY.

APPLICATION FILED MAY 23. 1904.

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@mi h www No. 852,756. y PATENTBD MAY 7.1907.

J. G..ANDERS0N. l

STAMP MILLMAGHINERY. l APPLIGATION FILED nu 23.11904.

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uhmm? manu ya JAMES c. ANDERSON, or HIGHLAND, PARK, iLLiNoIs.

STAMP-MILL wiAoHiNFFiY..

-Specication of Letters Patent.

Application filed May 23. 1904. Serial No. 209,254.

Patented May 7, 1907.

To all whom, it may concern: n

Be it known that I, JAMEs'C. ANDERSON, a citizen of the United States, residing at Highland Park, in the county of Lake and State of Illinois, have invented certain new and useful Improvements in Stamp-Mill Machinery; and I do hereby declare the following to-be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

My invention relates to certain new and useful improvements in "stamp mill ma-' chinery of that class shown and described in Letters Patent No. 743,800, granted to me November l0, 1903, and which was designed to carry out a method of crushing and stamping ores fully illustrated and described in Letters Patent No. 743,799, also granted to me November 10, 1903. This last mentioned Letters Patent involves the generic principle of lifting the stamp by the direct application of a suitable column or head of water delivered to the point of application of power, through a pipe or similar closed conduit, and then permitting the water to escapev and the stamp to descend by gravity and then utilizing the escaping water for pulping the crushed ore in themortar. The first mentioned Letters Patent illustrates and describes a stamplmill consisting of one or more mortars and stamps mounted in a suitable frame; mechanical means for lifting the stamps; and, a closed conduit for directing a-column of water, from an elevated source by gravity alone, directly to the stamp lifting mechanism, and it also shows and describes mechanism tlirou h the mediumof which the impact lforce o the falling dies is utilized -to operate a primary ore crusher.

My present invention has for its object to embody all of the generic principles of construction and operation set forth in the two Letters Patents referred to and to utilize the momentum shock produced by the fall of each stamp to lift the other mortar and its anvil against the stamp above the same, and

to produce a vibratory or rocking motion of the two inortars resulting 1n aseries of alternating blows of decreasing power between -tlie stamps and anvils. before the second stamp is lifted and allowed to fall by grav-ity to produce like results, whereby'the ore within the respective mortars is more thoroughly comininuted than would be the result of sinrounding strengthening flange 8.'

gle alternating blows by the stamps and the comminutedore is tossed and mixed within the mortars.

My invention also has for its object to render the construction simple and economic and the apparatus capable of ready transportation.

With these ends in viewmy invention consists broadly in coinbiniiigwith a pair of stamps adapted to be lifted by suitable mechanism and permitted to fall by gravity, a mortar located beneath each of said stamps, and mountedupon the opposite ends of a vibratory support or rocker, so that the Inof mentuin shock of each stamp within its respective mortar will while crushing the ore in said mortar, also cause the opposite mortar with its anvil to rise and deliver an upward blow against the stamp above said mortar and` a vibratory motion of the two mortars whereby a seriesiof alternating blows of Agradually decreasing power are produced and the ore linely comminuted and mixed, all as will be hereinafter more fully described.

My invention also consists in the details of construction and arrangements employed for carrying out the generic principles de scribed. i

'l In 'order that those skilled in the art to which. my invention appertains may know how to make and use my improved stam mill machinery and fully appreciate its a vantages, I will proceed to describe the same referring by numerals' to the accompanying drawings, in which,

-Figure l, is a side elevation of a stamp mill and crusher involving my invention, looking from the left of Fig. 2.. Fig. 2, is a front elevation partlyin section, said section being l taken on the line -w of Fig. 4. Fig. 3, is a rear elevation partly in section, said section being taken on the line y-fy of Fig. 1. Fig. 4, is a top planview. Fig'. 5, is a detail horizontal section taken on the line z-z, of Fig. 3, Fig. 6, is a detail section on enlarged scale, taken on the line a--a of Fig. 7, and Fig. 7, is a similar view taken on the line b-b, of Fig. 6. Similar reference numerals indicate like parts in the several ii ures of the drawings.

1, is ,the base or'beil plate, preferablyjcomposed of cast'iron formed with an elevated rocker support-"2 and' formed `with a e rocker support 2, springs from'parallel vertical-ribs 4, provided with rece's'ses'adanted IOO . able cushions 6located in said recesses.

7, is aroc'ker mounted u on the rocker support 2, the said rocker antFits support being of the form shown most clearly at Fig. 3, in order that the rocker may freely vibrate upon its support. The ribs' 4 and the ex,-

tremities of the rocker l7, are in the same ver-V tical plane with'vertical centerv oi the mortars 8, which are mounted'within the frame consisting of the bedplate 1, four posts' 9, two parallel arch castings 10, two parallel cross beams 11, and two transverse tie rods 12. The lower ends of the posts 9 are formed with shoulders adapted'to rest u on the bed plate and pass through vertical osses 13,01 the bed plate andare threaded to receive nuts 14 by which vthey are rigidly secured in place. The u per ends 'of these posts are similarly shoul ered to contact lugs 1.5, on the cross beams 11, and are secured rigidly thereto by nuts 16. l.

The arch castings are formed with a horizontal {iange 17 at Q aeh end and are secured to the cross beams 11, by suitable bolts 1X, and the transveretie rods 12 are shouldered 'at each end andpss through the cross beams 11, being secured in place by nuts 1E). One of the arch-shaped castings. is extended upwardly as shown at 20 and trends inwardly at the upperportion to constitute a bearing 21 (see Figs. 1 and 4) for a walking beam le- Y ver 22, formed with a hub 23, and spannershayed upper portion ha ed or bifurcated crank arm 24.

hewalking beam lever 22 is. vibratively secured' to this arch shaped casting, by a bolt 2 5 threaded through the bearing 21 and secured in place by a nut 26 (see Fig. 4). Each end of the walking beam lever 22 is formed with a lateral extension or hub 27, to which is attached an oscillating latch 28, which is formed with a hub 29, and an axial cylindrical shank 30 adapted to pass through the extension or hub 27 of the walking beam and is secured in position by a cotter pin 31 or in any other suitable manner adaptingr said latch to an oscillating or vibrative movement. This latch is of a bell-crank order, its vertical arm having a iiat horizontal upper face adapted to contact with the shoulder at the under extremity of the collar 32 ot' the. stem 33 of the stamp 34, and its horizontal arm bifurcated to straddle. the web of an I- 35, of a spring latch operating rod 36 mounted in lugs 37 on the outer side of a casting 38. T his casting 38, is secured by bolts 39 to a casting 40 which is in turn secured to 'Hanges 4l of the archshaped castings 10, and constitutes part ol' the bearing or housing'of the stems 32% oi" the stamps 34. The casting 38 is formed in two parts and the outer portion which is provided with the lugs 37, is set-.ured to that portion which is held in position by the bolts Zh), by transverse bolts 42, as shown at Fig. l.

and caps 50 secured by 43, is a coilv spring surrounding the spring latch operating rod 3.6 and is conned be,- tween the lower lug 34 of the casting 38 and (heck nuts 43X on the rod .36, as shown .at

ig. 1., v

The mortars 8 are provided with dies 44, and at their upper ends are closed by caps 45, secured vin position by vertical screw bolts 46 threaded into lugs 47 (see Fig. 6), on the mortars. These caps 45, are formed with vertical extensions 4X which constitute one- .halt oi the housing of the inner ends of each pair of the toggles 49 by which the crusher is operated, as will be presently described, screw bolts 51, to the extension 4S oil the cap, constitutes the other half of the housings of the inner ends of the tog-gies.

The outer ends of each pair of the toggles are secured by 'caps 52 respectively, to the lower ends ol the vibrative jaws 53 ol' the crusher and tothe cross beams 11, (as best shown in Figs. 3 and 6).

Each stamp is provided with a shoe 54, in the usual manner and the crusher jaws are viibratively secured at their upper endsby caps 56 to cylindrical supports 57, mounted in the arch castings 1.0. Parallel vertical extensions 5S of the castings 10, constitute.

the sides of the crusher hopper and to the lower 'extremities ol' .said extensions is secured by bolts 59, a feeder 60 formed with a central hollow tlelecting rib 61, (see Fig. 3), so that as the ore leaves the Crusher, it will be deliveredv to the dies of both mortars through the throats 62 lin an obvious manner.

'i From this construction, it will be readily I understood that when one of the stamps falls and contacts with thedie 44 at the bot tom of the mortar, said mortar is forced downwardly and consequently the toggles are lirst straightened, which causes the lower end ol the jaw of' the crusher on that side to be vibrated inwardly and as the mortar causes the rocker 7 to vibratev upon its support 2, the opposite mortar is lifted and the' similar toggles connected' with the cap ol that mortar are simultaneously, and to the same extent straightened and hence the Crusher jaw on that side also vibrates inwardly. The continuation of the downward movement olI the iirst named mortar and the corresponding continued upward moyen-lent of theother mortar auses the toggles connected with the respective mortars to buckle and to carry the lower ends of the two jaws away from each other, and these ribrative movements ol' 'the two jaws alternati-el)v crushes the ore and`then releases or feeds -it to the leeder 6() and through the throats 6;. to the two morta-rs.

The timing ol the vibration ol' the unlkhig beam lever 22, is preileterlnineiIl)v such :is to permit ol' this described pulsaloriv :1t-lion ol' stamps is shock of each stam is utilized to operate the crusher, and wit the mortars mounted upon the vibrative rocker according to my present invention, the momentum shock also operates to multiply the blows between the stampsv and the dies and to likewise cause each of the stampato be partly lifted before the stamp lifting devices come into action.

Particular attention'is directed to the advantageous results flowing from the 'fact that the two mortars are mounted upon opposite ends of the rocker 7.

, It will be readily seen that when one of the stamps descends upon the anvil of the mortar below said stamp, a crushing blow is given t9 the oreresting upon such anvil and the inortar is forced downward by the blow of the stamp, and consequently that end of the rocker upon-which sail mortar is mounted will be forced downward and that the opposite en d will be correspondingly lifted against the stamp in alinement therewith, and which is at a state of rest, and consequently the blow of the first mentioned stamp is thus transmitted to the lore resting upon the anvil in the second mortar, and at the same time said transmitted blow operates to lift the last mentioned stamp-into position to be. acted upon by the stamp lifting mechanism which is accordingly timed to thus act. When this stamp has been lifted and is released and falls by gravity the action just explained is obvious y reversed. This vibratory action of the mortars and the alternating blows given by the stamps also serves to agitato the broken ore in the mortar's which is a desirable comlition.

The stems 33 of the stamps 34, reciprocate vertically in the-bearings between the two parts of the castings 38, and pass through a suitable opening 63 (see Fig. 7), of the caps 45. i

The mortars 8, have their inner sides or walls extended to constitute a throat 62, so

that as the ore l delivered f said throat LS mortars gare ings on the th `eout cated suitable-screen and for the purpose sh eaves the crusherpit will be f of `both *mortarsf i w1` reviously explaine rmed with `gateways 55,1 substantially as ferred to.

The means for applying the column of water directly to the die lifting mechanism consists of the closed conduit or pipe 64, a hydraulic cylinder 65, and -a piston 66. The water conducted through the closed conduit l K 'nando described inl- Letters Patent .No.r74'3j800, hereinbefore reor pipe 6 4, is'fed alternately to opposite sides of the piston 66 through ports 67 and 68, by

- an oscillatingvalve 70, which is operated by a controller valve 71, as `fully illustrated and described in Letters Patent No.l 743,800,

l hereinbefore referred to.

'lhe outer end of the hydraulic piston stern 72 is secured to a cross-head 73, (see Fig. 4),'tothe ends of which are journaled rods '74, the opposite ends of which are pivotally connected with wrist pins or lugs '75 on the bifurcated crank arm 24, of the walking beam lever 22. One of the rods 74, is extended as shown at 76, and constructed in a similar' manner to the vertical rod shown in Letters Patent No. 743,800, and designated therein as E', to loperate the crank arm 77, of the A.controller valve 7]., and the water fed from an altitude through the pipe or conduit 64, is delivered to the hydraulic piston valve, and the controllervalve and Aexhausted and carried to the mortars for pulping purposes by suitable branch pipes all as fully set forth in the Letters Patent N o. 743,800, referred to.

As the piston 66 is reciprocated the Walking beam levery 22 is vibrated through the medium of the piston stem 72, cross head 73, and bifurcated crank arm 24, in an obvious manner, and as said walking beam lei er is vibrated it causes the stamps 34 to be alternately lifted and released so that they may fall by gravity to stamp the ore delivered from theY crusher onto the dies 44, in the mortars S.

While I have in a generai way described the action of the die lifting mechanism oper ated through the medium 4of a column of water controlled by suitablevalves, and have referred specifically to my prior Letters Patent No. 743,800, as illustrating and describing the action of the controlling valves and their interdependence and co-eperation, I do not wish to be limited in my present in vcntion to any of such details of construction or to the employment of any particular motive force for lifting' the dies, as the genus of my present invention resides more particularly in the features of construction by means of which I am enabled to utilize the momentum shock of the falling stamps, not only for the purpose of operating an ore crusher ar ranged above the mortars, but to likewise,

airdpprirnarily, utilize such momentum's'hock si* `ce o multiply the blows exerted upon t the or `mi'`tlie"21nortars, and to secondarilyZ flift ea rnpthrough a part ofits upward travel jfdeein it import-ant in this` connecjtidri, li weverftocallespecialattentiontotlie particular mechanism" by'meanaoiWlrich the stamps are lifted and re leased,`and viiich I have found to be highly satisfactory and eilicient and to which I have in a general way heretofore referred to.

The oscillating latches 2S which are vibra tively connected to the ends of vthe walkin;r

are so pivoted thereto that lthe head of the latch will norbefore the end ofthe walki g .beam -lever reaches the limit of its upward movement, and bv reason of the pivotal relation between it andthe latch 28, the latter will be vibrated 'out of frictional contact with the'collar 32,

thus permitting the stamp to descend by gravity. Should the latch, for any improbable reason, fail .to b'e vibrated o ut of contact with the collar walking beam lever reaches the limit of its upwardmovementfeas, for instance, shown on the left hand side of Fig. 3,-auxiliary means are provided to secure the proper outward or releasing movement of the latch 28.

' In this position the horizontal bifurcated arm of the arm of the latch straddles the I-shaped upper portion 35 of the spring operating ro which is so adjusted by the check nuts 43X, that just as the end of the walking beam lever reaches the limit of its upward movement, (as shown at the left of Fig. 3), the bifirrcated surface of the ,I-head ofthe rod 36, which will cause the latch to vibrate upon its pivot to release the collar 32, and permit the stamp to fall. The opposite end of the walking beam lever 22, having reached its lowest movement, the bifurcated arm of 'the latch on that side, has contacted withl'ijthe upper surface of the lower projectioniof the I-piece 35, and if the latch'should nothave resumed its normal position as heretofore explained, such contact will insure its assuming such position and with its head below the projecting shoulder of the collar 32, in position rto lift the stamp.

Having described the constructionv and operation of my improved stamp mill machinery, what I claim as new and desire to secure by Letters Patent, is:

1. In. a stamp mill', a pair of vertically movable stamps, a pair of vertically movable mortars, 'each located below and in alinement with the respective stamps; power transmitting 4rocker or lever mounted vibratively upon the base of the machine and supporting at each end thereof one of the vertically movable mortars, whereby the momentum shock produced by the descentof each stamp alternately,

medium of the vibrative rocker cause the material in the opposite mortar to be crushed between sai the path of the vertical 32, before the end of the dsc,-

latch 4will contact wit the under.

' or lever, whereby the and awill through the in .alinement therewith, substantially as hereinbefore set forth.

` 2. In a stamp mill such as combination with a ypair of' vertically re ciprocating stamps and a pair of vertically movable mortars mounted upon the opposite ends of a vibrating rocker or lever, a pair of crusher jaws v'ibratively mounted in the frame above the mortars and connected at their lower ends by toggle levers to the mortars and frame respectively, substantially as and for the purposes set forth.

3. In a stamp mill such as described, in combination with a pair of stamps adapted to vertical reciprocating movement and provided with col ars or shoulders near the upper ends of the stems thereof, a walking beam lever vibratively mountedupon the frame intermediate the stamps and provided at each end with apivotally connected oscillating latch adapted tocontact with and to release the collars or shoulders upon the uper ends of the stam stems, substantially as ereinbefore set fort 4. Inv combination with the vertically reciprocating stamps, vibrating walking beamV lever, and oscillating latches pivotally connected to each end of the walking beam lever, means adjustably connected with the frame for positively oscillating the latches, substantially as hereinbefore set forth.

5. Incombination with a pair of vertically reciprocating stamps; corresponding mortars and-dies mounted upon the opposite ends of a vibrating means for alternately liftiii means for connecting with the stamps and releasin the same, said means adapted to alternate y release each of said stamps prior to making liftin engagement with the other,` and for the purpose set forth.

6. In a stamp mill, a lpair of vstam s adapted to be positively l' lted and to diescend by gravity upon a mass of ore in a mortar beneath the same and a pair of mortarsy pivotally mounted one upon each end of a vibrative power transmittin rocker momentum s ook delivered by each stamp within its respective mortar will cause the rocker or lever .to vibrate and deliver a'crusbing blow to the ore iny the op osite mortar and against the stamp in a 'nement therewith, substantially as hereinbefore set forth.

7. In a stamp mill-such as described, in combination with a pair of vertically reciprocating stamps and a pair of mortars mounted upon opposite ends of arocker-or vibrating said stamps lever, a crusher'located adjacent tothe movvibrative movements of the supporting mortar and the stamp rocker are utilized-to apply motive force to lever or rocker; and` described, in

IOO

the lifting mechanism substantial y as crusher forvibratively operlextremity with one of the mortars, whereby the Crusher, substantially as hereinbefore set forth.

8. In a stamp mill such'as described, a pair i of vertically reciprocating stamps; a pair or' l vertically movable mortars in alinement with the respective stamps; a rocker or lever mounted vibratively intermediate of the i mortars and pivotally supporting one of the i mortars at each end thereof; and a combined j anvil or stop below each end of the rocker or I lever for limiting the extent ol .the vibrative i movement ofthe same, substantially as herei inbefore set forth.

9. ln a stamp mill, a pair of reciprocating l stamps, a pair of movable or reciprocating il mortars; and av vibrative power transmitting' rocker or lever pivotally connected at each the movement imparted alternately to each...l of the mortars by the blow of its respective stamp will cause said blow to be transmitted l to the other mortar to produce a crushing eli feet upon the contents and against its respective stamp, substantially as and for the purl pose set forth. i

l0. In. a stamp mill such as described, a l pair ol vertically reciprocating stamps; a )air l ol' vertically movable mortars; a wal iing beam. lever vibratively journaled in the frame; means intermediate each end of the walking beam lever and the vertically reciprowiting stamps for lifting and releasing the stamps; a rigid radial arm extending from the walking beam lever to and connected with a reci )rocatine wisten' a reci irocatiiur )iston l within a horizontally disposed hydraulic cyl- ]inder; a horizontally disposed oscillating valve connected by suitable supply and eX haust ports with the hydraulic cylinder and with water supply and exhaust conduits; a vertically disposed cylinder connected with water supply and exhaust conduits and prof I vided with a reciprocating piston; means intermediate the vertically reciprocating piston 'valve and the horizontally disposed valve, for controlling the movements of the latter; and closed water conduits or pipes connecting with each of the valves, substantially as and for the purpose set forth.

11. 1n a stamp mill such as described, in `combination with a pair of stamps adapted to vertical reciprocating movement and providedv with collars or shoulders near the upper ends of the stems thereof; a walking beam lever vibratively mounted upon the frame intermediate of the stamps; oscillating latches pivotally connected with the ends of the walking beam lever and adapted to contact with and release the collars or shoulders on. the stamp stems, and means for positivelyv causing the 'latches to release the collars or shoulders upon the stems of the stamps, sub stantially as hcreinbefOre set forth.

In testimony whereof, l have signed my name to this specification in the presence of two subscribing witnesses.

AMES C. ANDERSON. 'Vitnesses:

D. G. STUART, JNO. J. l'lAmiowER. 

